html,body,div,a,img{margin:0;padding:0;}
html{
    background: #002025 no-repeat left bottom; background-size:100%;
    width:100%;
    background-size:contain;min-height:100%;
}
.bg3{width:100%;height:100%;}
.logo3{width:100%;height:100%; text-align:center;overflow:hidden;}
.logo3 img{width:100%;}
.sm3{
    width:100%;
    margin-top:0%;
    text-align:center;
    overflow:hidden;
    position:relative;
    background-size:contain;
    }
.sm3 img{margin:0 auto;display:block;width:100%;}
.down3{width:100%;margin-top:-75%;text-align:center;;overflow:hidden;position:relative;}
.down3 img{width:60%;margin:10px auto;}

.down4{width:100%;margin-top:0%;text-align:center;;overflow:hidden;position:relative;}
.down4 img{width:60%;margin:10px auto;}

#step {
    margin-top:0%;
}
.line {
	height: 1rem;
	color: #585858;
	border-top: 1px solid #e5e5e5;
	margin: 1rem auto;
	text-align: center;
}
.line span {
	position: relative;
	top: -15px;
	background: #fff;
	padding: 0 2.5%;
}
.swiper-container {
	width: 80%;
}
.swiper-slide {
	text-align: center;
	background: #fff;
	display: flex;
	justify-content: center;
	align-items: center;
}
.swiper-slide img {
	max-width: 100%;
	margin: auto 0 2rem 0;
}

/* 定义keyframe动画，命名为blink */

@keyframes blink{
  0%{opacity: 1;}
  50%{opacity: 1;}
  50.01%{opacity: 0;} /* 注意这里定义50.01%立刻透明度为０，可以设置闪烁效果 */
  100%{opacity: 0;}
}

/* 添加兼容性前缀 */

@-webkit-keyframes blink {
	0% { opacity: 1; }
	50% { opacity: 1; }
	50.01% { opacity: 0; }
	100% { opacity: 0; }
}

@-moz-keyframes blink {
	0% { opacity: 1; }
	50% { opacity: 1; }
	50.01% { opacity: 0; }
	100% { opacity: 0; }
}

@-ms-keyframes blink {
	0% { opacity: 1; }
	50% { opacity: 1; }
	50.01% { opacity: 0; }
	100% { opacity: 0; }
}

@-o-keyframes blink {
	0% { opacity: 1; }
	50% { opacity: 1; }
	50.01% { opacity: 0; }
	100% { opacity: 0; }
}

/* 定义blink类*/
.blink{
	animation: blink .95s linear infinite;
	/* 其它浏览器兼容性前缀 */
	-webkit-animation: blink .95s linear infinite;
	-moz-animation: blink .95s linear infinite;
	-ms-animation: blink .95s linear infinite;
	-o-animation: blink .95s linear infinite;
	color: #dd4814;
}
